Transverse-mounted design delivers an aggressive exterior sound level with a deep tone, while maintaining moderate interior resonance for a balanced driving experience. It's the ideal muffler for rear-mounted systems, making it a favorite among muscle car builders, restorers, and weekend racers. Perfect for muscle cars, retro builds, and tight-clearance applications like GM F-body vehicles (Camaro & Firebird).

Designed for tight-clearance performance cars like the Chevrolet Camaro, Pontiac Firebird, and Trans Am. The transverse crossflow chambered design enhances exhaust scavenging and airflow, improving horsepower, throttle response, and delivering the aggressive Flowmaster tone. This space-saving setup fits in the stock location behind the rear axle, making it ideal for muscle cars, retro builds, and other tight-clearance applications without requiring a full custom exhaust.

Built from 16-gauge aluminized steel and fully MIG-welded for maximum strength and longevity. Resists heat, corrosion, and road damage for years of dependable performance. Precision-engineered for tight-clearance applications including classic GM F-body cars, retro-mods, and custom builds. Ideal for rear-mounted systems, the transverse layout mounts neatly behind the rear axle with no major modifications required. Main case dimensions: 4 inch x 9.5 inch x 15 inch. Offered in multiple inlet/outlet setups to match a variety of performance exhaust systems, making it a versatile choice for street, strip, or show.